19497345 has 48 divisors (see below), whose sum is σ = 37231488. Its totient is φ = 8682240.

The previous prime is 19497337. The next prime is 19497347. The reversal of 19497345 is 54379491.

It is not a de Polignac number, because 19497345 - 2³ = 19497337 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 19497297 and 19497306.

It is not an unprimeable number, because it can be changed into a prime (19497347) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 29812 + ... + 30458.

It is an arithmetic number, because the mean of its divisors is an integer number (775656).

Almost surely, 2^19497345 is an apocalyptic number.

19497345 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

19497345 is a deficient number, since it is larger than the sum of its proper divisors (17734143).

19497345 is a wasteful number, since it uses less digits than its factorization.

19497345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 710 (or 703 counting only the distinct ones).

The product of its digits is 136080, while the sum is 42.

The square root of 19497345 is about 4415.5798033780. The cubic root of 19497345 is about 269.1484142982.

The spelling of 19497345 in words is "nineteen million, four hundred ninety-seven thousand, three hundred forty-five".